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IEEE International Conference on Big Data and Cloud Computing (BdCloud)

作者： Layanah AlWreikat Rong Chai Osama M.F. Abu-Sharkh Chongqing University of Posts and Telecommunications Chongqing Chongqing CN Key Lab of Mobile Communication Technology Chongqing University of Posts and Telecommunications Chongqing China Department of Computer Engineering Princess Sumaya University for Technology Amman Jordan

In this paper, we present an energy efficiency based resource allocation scheme for a heterogeneous integrated network consisting of device-to-device (D2D) communication system and a cellular communication system. We study the power allocation and network mode selection scheme for users' coexistence of both systems in terms of energy efficiency maximization of the heterogeneous network (Het Net). The formulated optimization problem is a fractional non-convex problem, the standard convex optimization techniques cannot be applied directly. With the use of fractional programming and dual problem formulation, we are able to solve the non-convex problem, taking into consideration the minimum data rate required, the minimum received power and the maximum device dependent radiated power constraints. Results show that the optimal solution can be achieved with a relatively small number of iterations. Also results show that the increase in both the number of users and system data rate does not necessarily lead to an increase in the energy efficiency of the network.

关键词： Resource management Transmitters Energy efficiency Optimization Bandwidth Power demand Linear programming

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Unifying and Improving Graph Convolutional Neural networks with Wavelet Denoising Filters 23

Unifying and Improving Graph Convolutional Neural Networks w...

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2023 World Wide Web Conference, WWW 2023

作者： Wan, Liangtian Li, Xiaona Han, Huijin Yan, Xiaoran Sun, Lu Ning, Zhaolong Xia, Feng Key Laboratory for Ubiquitous Network and Service Software of Liaoning Province School of Software Dalian University of Technology Dalian China Research Center of Big Data Intelligence Research Institute of Artificial Intelligence Zhejiang Lab Hangzhou China Department of Communication Engineering Institute of Information Science Technology Dalian Maritime University Dalian China School of Communication and Information Engineering Chongqing University of Posts and Telecommunications Chongqing China School of Computing Technologies Rmit University Melbourne Australia

ISBN: (纸本)9781450394161

Graph convolutional neural network (GCN) is a powerful deep learning framework for network data. However, variants of graph neural architectures can lead to drastically different performance on different tasks. Model comparison calls for a unifying framework with interpretability and principled experimental procedures. Based on the theories from graph signal processing (GSP), we show that GCN's capability is fundamentally limited by the uncertainty principle, and wavelets provide a controllable trade-off between local and global information. We adapt wavelet denoising filters to the graph domain, unifying popular variants of GCN under a common interpretable mathematical framework. Furthermore, we propose WaveThresh and WaveShrink which are novel GCN models based on proven denoising filters from the signal processing literature. Empirically, we evaluate our models and other popular GCNs under a more principled procedure and analyze how trade-offs between local and global graph signals can lead to better performance in different datasets. © 2023 ACM.

关键词： Convolution

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Energy-efficient multi-hop routing algorithm based on LEACH

Energy-efficient multi-hop routing algorithm based on LEACH

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6th China Conference of Wireless Sensor networks, CWSN 2012

作者： Yang, He Xu, Jia Wang, Ruchuan Qian, Liyang College of Computer Nanjing University of Posts and Telecommunications Nanjing 210003 China Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Nanjing University of Posts and Telecommunications Nanjing 210003 China Key Lab. of Broadband Wireless Communication and Sensor Network Technology Ministry of Education Nanjing University of Posts and Telecommunications Nanjing 210003 China

ISBN: (纸本)9783642362514

In order to reduce network energy consumption and prolong the lifetime of wireless sensor networks, this paper improves the LEACH to an energy efficient multi-hop routing algorithm. LEACH in the cluster creation, data transmission, the update phase of the cluster was modified in proposed algorithm. The algorithm updates the cluster head reasonably and adjusts the structure of the cluster to reduce the energy consumption in cluster establishment phrase. In data transmission, it lowers energy consumption by inter-cluster and intra-cluster multi-hop transmission. The simulation runs the algorithm on NS2. The results show that the new algorithm's effectiveness in reducing energy consumption by comparing it with LEACH, LEACH-C,DEEUC. © 2013 Springer-Verlag.

关键词： Routing algorithms

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AN ID-based online/offline signature scheme without random oracles for wireless sensor networks

AN ID-based online/offline signature scheme without random o...

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作者： Wang, Zhiwei Chen, Wei College of Computer Nanjing University of Posts and Telecommunications Ministry of Education Jiangsu Province Nanjing 210003 Jiangsu China Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Nanjing 210003 Jiangsu China Key Lab of Broadband Wireless Communication and Sensor Network Technology Ministry of Education Jiangsu Province Nanjing 210003 Jiangsu China

Online/offline signature schemes allow one to quickly compute a digital signature from a precomputed coupon. In this paper, we present an ID-based online/offline signature for wireless sensor networks (WSNs), which is based on Hohenberger' RSA signature (Crypto 09). We argue that due to significant reduction in costs of computation and storage, our scheme is particularly suitable for the WSNs environment with severely constrained resources. Our scheme can be proved secure under the factoring assumption without random oracles. © 2012 Springer-Verlag London Limited.

关键词： Wireless sensor networks

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Error bound analysis of indoor Wi-Fi location fingerprint based positioning for intelligent Access Point optimization via Fisher information

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computer communications 2016年 86卷 57-74页

作者： Mu Zhou Feng Qiu Kunjie Xu Zengshan Tian Haibo Wu Chongqing Key Lab of Mobile Communications Technology Chongqing University of Posts and Telecommunications Chongqing 400065 China Ericsson San Jose California 95134 USA China Internet Research Lab Computer Network Information Center Chinese Academy of Sciences Beijing 100190 China

We observe that the laborious collection of location fingerprints, that could also potentially change with time and space, remains a hurdle towards the widespread deployment of indoor and outdoor positioning systems using the Wi-Fi. Motivated by this, we focus on the error bound analysis of indoor Wi-Fi fingerprint based positioning for intelligent Access Point (AP) placement optimization by using the Fisher Information Matrix (FIM) to characterize the relationship between the positioning errors and signal distributions. We first derive the closed-form error bounds with respect to different system parameters. Second, we use the Simulated Annealing (SA) algorithm to conduct the Wi-Fi AP placement optimization towards the lowest error bounds. Finally, we present the detailed discussion, extensive simulation, and experiment results.

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A Road Hotspots Identification Method Based on Natural Nearest Neighbor Clustering

A Road Hotspots Identification Method Based on Natural Neare...

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International Conference on Intelligent Transportation

作者： Qingwen Han Yingxiang Zhu Lingqiu Zeng Lei Ye Xueying He Xiaoying Liu Haotian Wu Qingsheng Zhu College of Communication Engineering Chongqing University Chongqing China College of Computer Science Chongqing Key Laboratory of Software Theory & Technology Chongqing China Chongqing Key Lab. of Software Theor. & Technol. Chongqing University Chongqing Sichuan CN

ISBN: (纸本)9781467365970

During the last decade, the concept of cluster, has become a popular practice in the field of road safety, mainly for the identification of worst performing areas or time slots also known as hotspots. However, current clustering methods used to identify road accident hotspots suffer from various deficiencies at both theoretical and operational level, these include parameter sensitivity, identify difficultly on arbitrary shape, and cluster number's rationality. The objective of this study is to contribute to the ongoing research effort on hotspots identification. Employing the concept of natural neighbor, a new algorithm, named distance threshold based on natural nearest neighbor (DTH3N), is proposed in this paper, striving to minimize the aforementioned deficiencies of the current approaches. Experiment results show that, comparing with existing methods, proposed algorithm presents a better performance on cluster division. Furthermore, this new method can be viewed as an intelligent decision support basis for road safety performance evaluation, in order to prioritize interventions for road safety improvement.

关键词： Clustering algorithms Road safety Road accidents Shape Algorithm design and analysis

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WSSecTool: A web service security analysis tool based on program slicing

WSSecTool: A web service security analysis tool based on pro...

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2012 IEEE 8th World Congress on Services, SERVICES 2012

作者： Fu, Wei Zhang, Yingzhou Zhu, Xianting Qian, Junyan College of Computer Nanjing University of Posts and Telecommunications Nanjing Jiangsu 210003 China Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Nanjing Jiangsu 210003 China Key Lab. of Broadband Wireless Communication and Sensor Network Technology Nanjing University of Posts and Telecommunications Ministry of Education Jiangsu Province Nanjing Jiangsu 210003 China Dept. of Computer Science and Technology Guilin Univ. of Electronic Technology Guilin 541004 China

ISBN: (纸本)9780769547565

With the development of web service, more and more attention has been drawn to web service in recent years. However, the damage caused by service security problems is becoming more and more serious nowadays. This paper develops a web service security analysis tool, WSSecTool, which is based on program slicing. This tool includes three modules namely slicing module, safety publishing module and testing module. Slicing module analyzes source codes of web service to generate method dependence graph (MDG). After MDG is generated, the tool slices MDG to detect the unsafe methods and the spread of them. Safety publishing module helps to hide unsafe methods to make them invisible to outer users after publishing. Testing module can test the services published by this tool to validate the correctness and feasibility of our analysis method. The experiments show that our tool is effective and practical. © 2012 IEEE.

关键词： Web services

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2nd World Congress on computer Science and Information Engineering, CSIE 2011

作者： Wang, Haiyan Wang, Ying Yue, Xiwen College of Computer Science Nanjing University of Posts and Telecommunications Nanjing 210003 Jiangsu China Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Nanjing 210003 Jiangsu China Key Lab. of Broadband Wireless Communication and Sensor Network Technology Nanjing University of Posts and Telecommunications Ministry of Education Jiangsu Province Nanjing 210003 Jiangsu China

ISBN: (纸本)9783642257650

A novel trust transmission method which is based on the similarities of nodes in trust models is proposed in this paper. Trust transmission is evaluated by calculating the similarity between recommenders when trustor does not have direct interaction with trustee. However, when there does not have direct recommenders, trust transmission is realized by guaranteed trust chains. Simulation results show that the proposed method improves the trustworthiness of node behavior to some extent and is practical especially in case when nodes do not know each other. © Springer-Verlag Berlin Heidelberg 2012.

关键词： network security

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A trusted network remediation scheme based on the stability of access terminals

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2nd World Congress on computer Science and Information Engineering, CSIE 2011

作者： Wang, Haiyan Xu, Mingming College of Computer Nanjing University of Posts and Telecommunications 210003 Nanjing Jiangsu China Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks 210003 Nanjing Jiangsu China Key Lab. of Broadband Wireless Communication and Sensor Network Technology Nanjing University of Posts and Telecommunications Ministry of Education Jiangsu Province 210003 Nanjing Jiangsu China

ISBN: (纸本)9783642257650

To improve the effectiveness of control and remediation of failure access terminals in trusted network, a novel remediation scheme is proposed in this paper. Based on the introduction of a definition of stability of access terminals and the employment of the architecture of trusted network connect(TNC), the proposed remediation scheme can not only realize a dynamic control on terminal's behaviors but also support a trustworthy remediation. Simulation results demonstrate that the proposed scheme is more effective compared with static and integrity-based remediation scheme and significantly improve the speed of remediation. © Springer-Verlag Berlin Heidelberg 2012.

关键词： Remediation

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Mobile agent based coding aware multipath routing for wireless sensor network

Mobile agent based coding aware multipath routing for wirele...

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6th China Conference of Wireless Sensor networks, CWSN 2012

作者： Shao, Xing Wang, Ruchuan Lin, Qiaomin Huang, Haiping College of Computer Nanjing University of Posts and Telecommunications XinMoFan Road.66 210003 Nanjing China Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks XinMoFan Road.66 210003 Nanjing China Key Lab. of Broadband Wireless Communication and Sensor Network Technology XinMoFan Road.66 210003 Nanjing China

ISBN: (纸本)9783642362514

This paper presents an Mobile Agent based Coding Aware Routing (MA-CAMR) for wireless sensor network, which exploits mobile agent to discovery the routing and coding opportunities, reducing complexity of node design. Besides, the general network coding condition of two cross flows is proposed for coding opportunity discovery. In addition, a novel routing metric, Coding and Energy Aware Routing Metric (CEARM) is proposed, which considers the coding gain, the load and energy of node. MA-CAMR exploits multipath routing and CEARM to balance the network load and energy consumption. Simulation results demonstrate that MA-CAMR could balance network load and energy consumption, reduce energy consumption, and prolong network lifetime. © 2013 Springer-Verlag.

关键词： Mobile agents

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